David B. Bogy

TL;DR: In this paper, the authors evaluated the mechanical and tribological properties of hydrogenated carbon films using three nanotribological characterization techniques based on scanning probe microscopy, including nano-hardness tests and nano-wear tests.

TL;DR: An analysis of the low frequency response of piezoelectric squeeze tubes used in drop-on-demand ink jet printing is carried out, and results are presented in graphical form which can be used to optimize design dimensions.

TL;DR: In this article, the fly height hysteresis was examined by examining the fly width and takeoff rpm of hard disk drives, and the difference in the touchdown and takeoff RPM was monitored for different slider designs, varying the humidity and lubricant thickness of the disks.

TL;DR: In this article, a hybrid numerical analysis that includes the hydrodynamic bearing effect and elastic contact in a ring-type ultrasonic motor is presented, where the two-dimensional time-dependent compressible Reynolds equation is solved numerically by a second-order time accurate, noniterative, factored implicit finite-difference algorithm.

TL;DR: In this paper, the effect of carbon film thickness on diamond nucleation was examined by measuring the etching rate of carbon films exposed to a hydrogen plasma and was further interpreted on the basis of scanning electron microscopy and Raman spectroscopy results.